le poste client: this one has engendered a lot of chat on translation fora (forums?). The consensus is that depending on context, it can be either a workstation or a client (in the computing sense of that term).

un attaquant: attacker, assailant

au hasard: random, aimlessly

récupérer: get back, retrieve, salvage, recover

une information: in this case: detail, data

sensé: this one turns out not to be straightforward. I wrote to a native speaker about it, who had this to say: “Well, “sensé” (sensible, meaningful) is a word which is often confused with “censé” (supposed, assumed), the first one being quite common,
and the second mostly used in specific constructs. Also, “sensé” is
easily traced back to “sens”, whereas “censé” needs to go back to
Latin [as in English “census”] or linked to words whose meanings are
more distant, such as “recenser”, or of a higher register (“censément”).
Here [the author] should have written “censées”, meaning “supposed to be”.”